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Daint: change cuda module #1553

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merged 7 commits into from
Sep 25, 2020
Merged

Daint: change cuda module #1553

merged 7 commits into from
Sep 25, 2020

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havogt
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@havogt havogt commented Sep 24, 2020 •
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Environment changes on daint:

Performance changes:
We see quite some chagnes both on GPU and CPU after the upgrade.
Most significant:

  • CUDA: vertical advection on small domain with float is about 40% slower (in all variants: clang-cuda, nvcc-clang, nvcc-gcc)
  • cpu_kfirst: factor 10x slowdown for layout_transformation, maybe a vectorization issue

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havogt commented Sep 24, 2020

launch jenkins

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havogt commented Sep 24, 2020

launch jenkins

@havogt havogt mentioned this pull request Sep 24, 2020
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havogt commented Sep 24, 2020

launch jenkins

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havogt commented Sep 24, 2020

launch perftest

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havogt commented Sep 25, 2020

launch jenkins

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havogt commented Sep 25, 2020

launch perftest

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havogt commented Sep 25, 2020

launch jenkins

@havogt havogt requested a review from fthaler September 25, 2020 10:23
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havogt commented Sep 25, 2020

launch perftest

@havogt havogt merged commit 71c227d into master Sep 25, 2020
@havogt havogt deleted the cuda-on-daint branch September 25, 2020 14:04
@havogt havogt mentioned this pull request Sep 28, 2020
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@fthaler fthaler fthaler approved these changes

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